package com.etc.servlet;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class ExitServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public ExitServlet() {
		super();
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void service(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
        request.getSession().invalidate();
    	// 销毁session
        request.getSession().invalidate();
       if("exit".equals(request.getAttribute("op"))){
    
        response.sendRedirect("index.jsp");
       }
       else
    	   response.sendRedirect("login.jsp");
	
	}
	

}
